Oil thief



Jan. 5, 1 932. F Q JOHNSON '7 1,839,681 V OIL THIEF Filed April 8, 1950 30 m VENTOR Famine: 0. JoHNso/v FU'IOBNEY.

10 on which the thief is suspended.

Patented Jan. 5, 1932 g .1,

ire. .rarns rrEN'rfoF icE FREDERICK o; JOHNSON, or none BEACH, CALIFORNI'A OIL THIEF Application filed April 8, 1930. Serial No. 442,708

This invention relates to an oil thiefwhere fitting in the usual manner, thatis, a cable by a quantity of oil or other liquid, can be or other suspension means is secured to the obtained from a tank, and at any level in the fitting so that the oil thiefcan be lowered into tank. j V the tank. A pair of bell crank levers 107-11,

An object of my invention is toprovide an are pivotally mounted in the head 2 and 50 oil thief which can be readily operated and preferably on the plate lg. To the upper end closed at any level in the tank. of these; bell crank levers are secured links Another object is to provide an oil thief 12 13 respectively, which are also fastened which is actuated by a sharp jerk on the line to the fitting 9. Thus any reciprocal movement of, the fitting will be imparted to the 55 i A further object is to provide a IV bell crank levers and will swing the same. means for simultaneously opening ports at The lower ends of the bell crank levers are the top. and bottom of a cylinder so that, the secured to racks li -15 respectively by a oil can readily and quickly pass therein. lost motion connection. The racks are Still another objectis to provide an oil mounted in transverse channels 16-17 're- 00 terior construction.

thief which will operate easily and with pre spectively. These channels are mounted in cision. the head 2 and are suitably secured therein. Other objects, advantages, and features of The racks 1415 both engage a gear 18, invention may appear from the accompanywhich is journaled on a shaft 19 and ad- 20 lllg drawings, the Sllbj oined detailed dQSCIlP- jacent the upper end thereof, The gear 18 is tion, and the appended claims. connected to the shaft 19 by a uni-directional In the drawings: clutch means including a toothed wheel '20. Figure 1 is a side elevation of my 011 secured to the shaft, and a spring actuated thief with parts broken away to show indog 21 which is securedto the gear 18. p

v A disc 22 is secured in the tubel adjacent Figure 2 is a longitudinal, sectional View the top thereof, and the shaft 19 extends of the oil thief. therethrough. A closure disc 23 issecured Figure 3 is a sectional view taken on line to the shaft 19 and rests upon the disc 22. 33 of Figure 2. The disc 22 is provided with a plurality .30 Figure f is a sectional view taken on line of holes 24 which extend therethrough and H of Figure 2. the closure disc 23 is provided with holes 25.

Referring more particularly to the draw- The holes 2425 are brought into, and out of ings, the numeral 1 indicates tube, on the registry as the shaft 19 is rotated, as will be upper end of which a head 2 is mounted, and further described. 1

35 at the lower end 1 provide a shoe 3. A sus- The shaft 19 is held in position against pension plate 4: is secured in the head 2 and a rotation by means of a star wheel 26 secured post 5 is slidably mounted in the plate and thereto. A pair of arms 2728 are pivoted rises therefrom. Ahead 6011 the post, limits together at one end, and a spring 29 conthe upward movement thereof. A tension nects the other end of the arms. The arms spring 7 issecured at its lower end to the are each provided with .a roller 30 which head 2, and the upper end is secured to an enters the teeth of the star wheel to hold the adjusting nut 8. This spring normally holds shaft against rotation. One of the arms is the post 5 in the lowered position. pivotally secured to the disc 22 as shown at A fitting 9 is secured to the upper end of 31. A bottom closure 32 has a plurality of 45 the post 5 and the oil thief is carried by .the holes 33 extending therethrough. A pair of tached closure discs 3l35 and 23.

discs 34-35 rest on the top and bottom of the closure 32, and these discs are provided with a plurality of openings 3637 respectively which are brought into and out of registry with the holes 33. The discs 34 -35 are both secured to the shaft 19 and are held tightly against the closure 32 by means of a spring 38 which presses against the disc 34 and against a rider 39 on the shaft.

The method of operation of my oil thief is as follows: The openings 33 and 24 are both closed by rotating the shaft19 and the at- When the thief has been lowered to the desired level, a sharp pull on the suspension line will cause the post 5 to travel upwardly until it is stopped by the head 6. The upward pull actuates the links 1213' which in turn swing the bell crank levers 10-11 and move the racks 1415, which in turn rotate the gear 18. At the completion of this movement, the spring 7 returns the post 5 to the original lowered position. The uni-directional clutch means including the toothed wheel 20 and the dog 21 has caused the shaft 19 to rotate and this opens the ports 24 and 33. The star wheel 26 and its co-acting parts, hold the shaft 19 against further rotation until the fitting 9 is again jerked in the same manner as previously stated so that the ports 24 and 33 are closed. The oil thief is now full and can be removed from the tank without loosing any of its contents.

-Ha'ving described my invention, I claim:

1. Anoil thiefcomprising a tube, closure means at the top and bottom of said tube, a fitting'from which the tube is suspended, spring means'attached to said fitting and urging the same towards the tube, a shaft attached to said upper and lower closure means, a gear mounted on said shaft, a rack engaging said gear, and means connecting said fitting and said rack whereby the rack is moved when said fitting is pulled away from the tube, and means on the shaft engaging said rack whereby the shaft is rotated to open and close said closure means. 2. An oil thief comprising a tube, closure means at the top and bottom of said tube, a shaft to which said closure means are secured, a gear on the shaft, a rack engaging said gear, a fitting, springmeans urging said fitting towards the tube, a bell crank lever attached to the tube, one end of said bell'crank lever being attached to the rack, and means connecting the other end of said bell cranklever and the fitting whereby said bell crank l'ever is swung when the fitting is pulled away from the tube. 3

3. An oil thief comprising a tube, closure -means at the top and bottom of said tube, a

fitting, from which the tube is suspended, spring means attached to said fitting and urglng'the same towards the tube, a shaft attached to said upper and lower closure means, a gear mounted on said shaft, a rack engaging said gear, and means connecting said litting and said rack whereby the rack is moved when said fitting is pulled away from the tube, and means on the shaft engaging said rack whereby the shaft is rotated to open and close said closure means, and means engaging said shaft whereby accidental rotation of said shaft is prevented.

4:. An oil thief comprising a tube, closure means at the top and bottom of said tube, a shaft extending through the tube, said closure means being secured to the shaft, a gear on the shaft, uni-directional clutch means connecting said gearandshaft, a rack en- I gaging said gear, a fitting above the tube, a

spring connected to said fitting and to the tube whereby the fitting is urged towardsthe tube, and means connecting said fitting and the rackwhereby any movementof the fitting away from the tube will actuate said rack to rotate the shaft. v

5. An oil thief comprising a tube, closure means at the top and bottom of said'tube,.a shaft extending through the tube, said closure means being secured to the shaft, a gear on "the shaft,-uni-directional clutch means connecting said gear and shaft, a rack engaging said gear, a fitting above the tube, a spring connected to said fitting and to the tube whereby the fitting is urged towards the tube, and means connecting said fitting and the rack whereby any'movement of the fitting away from the tube will actuate said rack to rotate the shaft, means engaging the shaft whereby accidental rotation of the shaft is prevented; I i An oil thief comprising a tube, closure means at the top and bottom of said tube, a shaft extending through the tube, said closure means being secured to the shaft, a gear on the shaft, uni-directional clutch means connecting said gear and shaft, a rack engaging said gear, a bell crank lever secured to the tube, one end of said bell crank lever engaging the rack, a fitting above the tube, a shaft extending from the fitting into the tube, a spring encircling the shaft, one end of the spring being secured to thetube and the otherend to the shaft, and a link secured to the fitting and to one end of the bell crank lever whereby movement of the fitting away from the tube will swing the bell crank lever to actua'te the rack.

7. An oil thief comprising a tube, a disc adjacent the top of the tube, said disc having a plurality of ports therein, a closure disc bearing againstsaid first named disc, said closure disc having a plurality of ports there in adapted to mesh with the first named ports, a closure wall adjacent the bottom of the tube, a pair of closure discs bearing against the top and bottom of the closure wall, said closure wall having ports therein, and said last named closure dis-cs having ports therein adapted to register with the ports in the closure wall, a shaft extending through the tube, all of said closure discs being secured to the shaft, a gear on the shaft,,a rack engaging the gear, a fitting above the tube, spring means urging the fitting towards the tube, and means connecting said fitting and the rack whereby movement of the fitting away from the tube will actuate said rack to rotate the shaft.

8. An oil thief comprising a tube, a disc adjacent the top of the tube, said disc having a plurality of ports therein, a closure disc bearing against said first named disc, said closure disc having a plurality of ports there in adapted to mesh with the first named ports, a closure wall adjacent the bottom of the tube, a pair of closure discs bearing against the top and bottom of the closure Wall, said closure wall having ports therein and said last named closure discs having ports therein adapted to register with the ports in the closure wall, a shaft extending through the tube, all of said closure discs being secured to the shaft, spring means surrounding the shaft, a rider 0n the shaft, said spring bearing against the rider and against the closure discs on top of the bottom closure wall, a gear on the shaft, a rack engaging the gear, a fitting above the tube, spring means urging the fitting towards thetube, a bell crank lever pivotally mounted on the tube, one end of said bell crank lever being connected to the rack, and a link connecting the other end of the bell crank lever and the fitting whereby movement of the fitting away from the tube will actuate the rack.

9. An oil thief comprising a tube, a disc adjacent the top of the tube, said disc having a plurality of ports therein, a closure disc bearing against said first named disc, said closure disc having a plurality of ports therein adapted to mesh with the first named ports, a closure wall adjacent the bottom of the tube, a pair of closure discs bearing against the top and bottom of the closure wall, said closure wall having ports therein and said last named closure discs having ports therein adapted to register with the ports in the closure wall, a shaft extending through the tube, all of said closure discs being secured to the shaft, spring means surrounding the shaft, a rider on the shaft, said spring bearing against the rider and against the closure discs on top of the bottom closure wall, a gear on the shaft, a rack engaging the gear, a fitting above the tube, spring means urging the fitting towards the tube, a bell crank lever lever pivotally mounted on the tube, one end of said bell crank lever being connected to the rack, and a link connecting the other end of the bell crank lever and the fitting whereby movement of the fitting away 

